Four starter mappings
Eight shorter messages for learning consistent substitution.
Decode 24 newly written messages across three levels. Every puzzle has its own one-to-one alphabet, accurate starter mappings, writable decoding space, and a matched complete key.
Worksheets are on pages 1-12. Plaintexts and complete keys are on pages 13-24. No sign-up and no watermark.
Choose a page from the actual PDF contents. The links open the complete 24-page file at your selection when supported by your PDF viewer; they are not separate single-page files.
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High-contrast preview: actual US Letter page 1, Printable Cryptograms - Page 1 of 12. Open the PDF for full-size printing. The interactive viewer can display every original page.
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Eight shorter messages for learning consistent substitution.
Eight longer sentences with less supplied help.
Eight longest messages with the smallest opening clue.
Two puzzles appear on each worksheet page. Every item has an independent alphabet and a matched answer in the second half.
33 letters · 16 distinct · 4 starter mappings
Answer page 1342 letters · 18 distinct · 4 starter mappings
Answer page 1343 letters · 17 distinct · 4 starter mappings
Answer page 1440 letters · 14 distinct · 4 starter mappings
Answer page 1442 letters · 18 distinct · 4 starter mappings
Answer page 1540 letters · 18 distinct · 4 starter mappings
Answer page 1542 letters · 16 distinct · 4 starter mappings
Answer page 1644 letters · 20 distinct · 4 starter mappings
Answer page 1656 letters · 19 distinct · 2 starter mappings
Answer page 1753 letters · 20 distinct · 2 starter mappings
Answer page 1754 letters · 17 distinct · 2 starter mappings
Answer page 1852 letters · 17 distinct · 2 starter mappings
Answer page 1854 letters · 18 distinct · 2 starter mappings
Answer page 1959 letters · 18 distinct · 2 starter mappings
Answer page 1958 letters · 17 distinct · 2 starter mappings
Answer page 2059 letters · 17 distinct · 2 starter mappings
Answer page 2079 letters · 20 distinct · 1 starter mapping
Answer page 2183 letters · 22 distinct · 1 starter mapping
Answer page 2173 letters · 18 distinct · 1 starter mapping
Answer page 2282 letters · 19 distinct · 1 starter mapping
Answer page 2281 letters · 20 distinct · 1 starter mapping
Answer page 2383 letters · 19 distinct · 1 starter mapping
Answer page 2386 letters · 15 distinct · 1 starter mapping
Answer page 2478 letters · 21 distinct · 1 starter mapping
Answer page 24These are actual messages from the download. Open an answer only when you are ready to see the plaintext.
J KCDWY XYJMY ZJNWX MVVZ IVM J ASWJM HSJU.
Starter mappings: J=A · M=R · W=E · V=OA QUIET START MAKES ROOM FOR A CLEAR PLAN.
RBN YXFQVY BNZQ D WDZN SNLZNGRXVF VL RBN GZVAQI DPVUN RBN GVASRCDSQ.
Starter mappings: N=E · V=OTHE WINDOW HELD A PALE REFLECTION OF THE CLOUDS ABOVE THE COURTYARD.
IBWS KBW QAIWD DWKZDSWC, KBW AXC NXANE DWUZLWC PKU UKWHCJ KPNE HU PV KBW QHZUW BHC SWYWD BHQQWSWC.
Starter mappings: W=EWHEN THE POWER RETURNED, THE OLD CLOCK RESUMED ITS STEADY TICK AS IF THE PAUSE HAD NEVER HAPPENED.
One plaintext letter always becomes the same cipher letter inside a puzzle. Spaces and punctuation stay in place. Each page starts with accurate mappings; record confirmed letters on the alphabet strip and test a guess everywhere that symbol appears.
Every puzzle uses a different alphabet, and no letter encrypts as itself.
All 26 letters map one-to-one, with zero plaintext letters left unchanged.
The inverse key reconstructs the original message with spaces and punctuation intact.
Every hint is checked, and plaintexts, ciphertexts, mappings, and signatures must be unique.
Use Letter for 8.5x11-inch paper or A4 for 210x297-mm paper. Print at 100% or Actual Size. Print pages 1-12 for worksheets; answers begin on page 13.
All cipher text, writing lines, and keys remain readable in grayscale.
You may print copies for personal use, one classroom, a homeschool group, a library activity, or a community event. Please do not resell or redistribute the PDF files.
Yes. Pages 1-12 are worksheets and pages 13-24 contain matched plaintexts and complete keys.
No. All 24 messages were written specifically for this pack.
No. Every cryptogram uses an independent substitution alphabet.
No. Every generated alphabet is a derangement with zero self-mapped letters.
Yes. Each file uses the true paper dimensions named on its button.
Keep the answer closed and use the printed starter mappings. A language guess must agree with every occurrence of its cipher letter; it is not a mathematically forced substitution.
The starter key gives M = R and V = O. The four-letter cipher word MVVZ therefore reads ROO_. Its middle pair must decode to the same letter twice.
ROOM is a plausible completion, suggesting Z = M. Write that as a tentative guess and use it at every Z in the message. Continue checking the surrounding words; do not change a key for only one occurrence.
After solving, compare the entire sentence with the matched answer page and full key. The intended phrase is “MAKES ROOM FOR A CLEAR PLAN.” A correct-looking isolated word is not enough if the rest of the substitution conflicts.